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Summary: Nested Classes | Inherited Constants | Fields | Methods | Inherited Methods

# FillEventHistory

`public final class FillEventHistory`
`extends Object` `implements Parcelable`

java.lang.Object
↳ | android.service.autofill.FillEventHistory

Describes what happened after the last `AutofillService#onFillRequest(FillRequest, android.os.CancellationSignal, FillCallback)` call.

This history is typically used to keep track of previous user actions to optimize further requests. For example, the service might return email addresses in alphabetical order by default, but change that order based on the address the user picked on previous requests.

The history is not persisted over reboots, and it's cleared every time the service replies to a `AutofillService#onFillRequest(FillRequest, android.os.CancellationSignal, FillCallback)` by calling `FillCallback#onSuccess(FillResponse)` or `FillCallback#onFailure(CharSequence)` (if the service doesn't call any of these methods, the history will clear out after some pre-defined time).

## Summary

### Nested classes
`class` | `FillEventHistory.Event` Description of an event that occured after the latest call to `FillCallback#onSuccess(FillResponse)`.

### Inherited constants
From interface `android.os.Parcelable`
`int` | `CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int` | `PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `writeToParcel(Parcel, int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

### Fields
`public static final Creator<FillEventHistory>` | `CREATOR`

### Public methods
`int` | `describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`Bundle` | `getClientState()` This method is deprecated. use `getEvents()` then `Event#getClientState()` instead.
`List<FillEventHistory.Event>` | `getEvents()` Returns the events occurred after the latest call to `FillCallback#onSuccess(FillResponse)`.
`String` | `toString()` Returns a string representation of the object.
`void` | `writeToParcel(Parcel parcel, int flags)` Flatten this object in to a Parcel.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
From interface `android.os.Parcelable`
`abstract int` | `describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void` | `writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

## Fields

### CREATOR

    public static final Creator<FillEventHistory> CREATOR

## Public methods

### describeContents

    public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of `writeToParcel(android.os.Parcel, int)`, the return value of this method must include the `CONTENTS_FILE_DESCRIPTOR` bit.

Returns
`int` | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or `CONTENTS_FILE_DESCRIPTOR`

### getClientState

    public Bundle getClientState ()

This method is deprecated.
use `getEvents()` then `Event#getClientState()` instead.

Returns the client state set in the previous `FillResponse`.

Note: the state is associated with the app that was autofilled in the previous `AutofillService#onFillRequest(FillRequest, android.os.CancellationSignal, FillCallback)` , which is not necessary the same app being autofilled now.

Returns
`Bundle` | This value may be `null`.

### getEvents

    public List<FillEventHistory.Event> getEvents ()

Returns the events occurred after the latest call to `FillCallback#onSuccess(FillResponse)`.

Returns
`List<FillEventHistory.Event>` | The list of events or `null` if non occurred.

### toString

    public String toString ()

Returns a string representation of the object. In general, the `toString` method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The `toString` method for class `Object` returns a string consisting of the name of the class of which the object is an instance, the at-sign character ``@`', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

>      getClass().getName() + '@' + Integer.toHexString(hashCode())

Returns
`String` | a string representation of the object.

### writeToParcel

    public void writeToParcel (Parcel parcel,
                    int flags)

Flatten this object in to a Parcel.

Parameters
`parcel` | `Parcel`: The Parcel in which the object should be written.
`flags` | `int`: Additional flags about how the object should be written. May be 0 or `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES

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